Ore concentrator



l. B. ARTHUR, D-ECD.

Nl. R. ARTHUR, EXECUTRIX.

OBE coNcENTRAToR.

A TTORNE Y.

Patented May 23, 11922. A 3 SHEETS-SHEET 2*- J. B. ARTHUR, DECD.

M. AnTHuR, EXEcuTmx.

ORE CONCENTRATOR. l APPLlcAloN FILED 155.21, lzo.

INVENToR.' James 15 Jlrhll ATTORNEY.

wie'

- J. B. ARTHUR, DECD. M. n. ARTHUR. ExEcuTmx. ORE CONGENTHTOR.v

APPLICATION man ns. 21. 1929.

I Paten-med May 3 SHEETS-SHEET 3..

ATTORNEY.

N w? N JAMES IB. ARTHUR', '.DECEASED, BY R. ARTHUR, EXEC'UTRK, 0F JOPLIN,' l

MISSGURI. l

ORE CONCENTRATDR.

Morenas.

Specification of Letters Patent.

Patented Mlay 1222..,

Application tiled. February 21, 1920. serial No. 360,434.

To all who/1n` t 'may concern.'

`Be 1t known that I, MARY R. AR'rHUn, a citizen of the United States, residing at Joplin, inthe county of Jasper and `State of lllissouri, have been appointed exeeutrix of `the last `will and testament of James B. Arthur, late a citizen of the United States, deceased, who` invented certain new and use- `the rotary table upon which kthe concentrates are collected.

Another object is to provide means for draining off the surplus 'water admitted to the table with the crushed ore.

Other objects will hereinafter appear and in order that the invention may be fully understood, reference will now be had to the accompanying drawings, in which:

`Fig. 1 is a broken side elevation of the machine.`

QF ig. 2 is an enlarged broken vertical section. on line 1li-Il ofFig. 6. i

F ig. 8 is an enlarged vertical, fragmentary section of a gate and associated parts.

Fig. i is an enlarged broken cross section `on line `IV-IV of lFig. 6.

,i F ig. 5 is a detail plan view of a star wheel employed .in carrying out the invention.

Fig. 6 is a front elevation lof the machine with some of the mechanism removed and a sweep in position for packing down and smoothing the material as it enters upon the table.

Referring now in detail to the various parts, `2 designates a suitable frame, in the center of. which a.vertically-disposed shaft e is mounted. 4 Said shaft 4c is journaled at its upper portion in a `bearing 6 and at its lower end in a step bearingS.

10 designates a rotary table having a centrally-disposed hub 12 keyed or otherwise :lixed to the shaft t in order to rotate therewith.

of ports 18 for the discharge of surplus water entering with the crushed ore.

Said table 10 has a circular portionr lil, preferably,` of slightly conical form and 4.surmounted by a rim 16, having a plurality `The ports 18 are fitted with rectangular frames 20 having vertical grooves 22 to receive vertically movable gates 2li equipped at their upper ends with spouts 26. The

lower portion of each gage 26 is equipped with a nut 28 to travel up and down on a screw 30 journaled 1n a bracketv32 fixed to theunderside of the table 10. `The lower end of the screw 30 is equipped with a star wheel 34, which is fixed to said screw 30 to rotate the same. 3,6 designates a lever mounted on a pivot B8 xed to a standard 40. The lever 36 has u wardly-extending prongs l2 and 44, one;

o which when thrown into `the p ath of the `star `wheel 34E rotates the same in a direction to cause the screw 30 to raise the gage 24, while the other prong when thrown into the path `of said star wheel rotates the same in a reverse ldirection to lower the gate 24( The lever 36 is held in the neutral position disclosed by Fig. 3, or in position to hold either of its prongs in the path of the star wheel` 34:, by a pin 46 adapted to enter any ofthe openings in a segment 48 secured to the standard 40.

The table l0 `is provided with a iixedly mounted, centrally-disposed drum 50, which is surmounted by a conical distributor 52 fixed to the lower `end of a tubular shaft 54, journaled` on the shaft 1f and resting upon a collar 56 xed to said shaft 4L. rlFhe margin of the distributor 52 is surrounded by an annular guard 58 supported by arms G0 secured to the periphery of the drum 50. As shown more clearly on Fig. 2, the guard 58 is spaced from the circular margin of the distributor 52 to leave an annular space for the passage of the crushed `ore from said distributor 52 to the table 10.

62 designates a rotary hopper disposed above the distributor 52 and supported by arms 64, adjustably connected at their up` 9er ends to a sleeve G6 having a groove and 'feather connection G8 with a tubular shaft 70, journaled upon the tubular shaft ll and resting upon a fiange 72 [ixed to said tubular shaft 54.

The shaft fi, carrying the table 10, is proupper end with a bevel gear 94 intermeshing with a bevel gear 96 iiXed upon a counter shaft 98vprovided with another bevel gear 100, intermeshing with a bevel gear 102 fixed upon a vertical shaft 104 provided at its upper end with a bevel gear 106 driven by a bevel gear 108 loosely mounted upon the drive shaft 86.

The tubular shaft is provided at its upper end with a bevel gear 110 intermeshing with a bevel gear 112 iXed upon a counter shaft 114 provided with another bevel gear 116 driven b y a bevel gear 118 fixed upon the lower end of the vertical shaft 104, which is journaled in abracket 120 depending from the frame 2. The counter shafts 98 and 114 are journaled in hangers 122 and 124 depending from the upper'portion of the frame 2. The bracket 122 carries the segment 80 and is provided with a bearing 126 surrounding the tubular shaft 70.

The bevel gear 108 is loosely mounted upon the drive shaft 86 but may be caused to rotate therewith at will, through the intermediacy of a clutch 130 having a groove and feather connection 132 with the drive shaft 86 and controlled by a hand lever 134.

202 designates a sweep of ordinary type for packing the ore upon the table 10 and forcing the water to the. top of said ore. The pole of the sweep 202 .is secured in brackets 204 removably fixed to the conical distributor 52.

In the practical operation of the machine the distributor 52 is equipped with one or more sweeps 202. The gates 24 are then adjusted to lowered position, while the clutch 130 is shifted into engagement with. the bevel gear 108 to drive the distributor 52 and the hopper' 62v in reverse directions to each other through the intermediacy of the intervening gearing when power is applied to the fixed pulley 90. The table 10 is driven in the same direction as the hopper 62 through the intermediacy of the gears 84 and 821 The crushed ore is conducted to the hopper 62 by a chute or other suit able conveyer (not shown) and as said hopper 62 rotates, it discharges the ore upon the distributor 52, which discharges it uniformly upon the table 10. As the ore falls upon the distributor 52 the guard 58 prevents said ore from being cast olf by centrifugal force and directs it downwardly around the drum 50 from where it spreads over the table 10. As the crushed ore and the accompanying water 'liow outwardly upon the table 10 towards the rim 16, the water is forced to the top and escapes through the spouts 26 which are raised slightly in advance of the rising ore through the intermediacy of the gates 24 and their respective actuating mechanisms embodying the screws 80 and the nuts 28. After the ore attains the desired depth upon the table 10 the belt is shifted from the tight pulley 00 to the loose pulley 02 to bring the moving parts to a stop. rlhe table 1.0 is then unloaded.

Any number of levers 36 may be spaced around under the table 10 to ellert the opening and closing of the gates 2l at the desired speed.

From the above description it will be apparent that l have produced an ore concentrator which can be operated at a minimum cost of labor by employing the automatic slide gates 24, and while l have illustrated and described the, pre lerred embodiment of my invention, it is obvious that such changes in the forni, detail construction and arrangement of parts may be made, as properly fall within the scope of the claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

1. ln an apparatus of the character described, a rotary table, gates operably mounted on said table and provided with spouls, screw mechanism rotatable with the table for opening and closing said gates, and means independent of the table which said screw mechanism contacts and is actuated thereby during each revolution ol the table.

2. ln an apparatus olE the clnrracter de` scribed, a rotary table, a gate operably mounted on said table, a nut fixed to said gate, a screw threaded into said nut, a bearing ixcd to the table and carrying said screw, a wheel ixed to said screw to rotate the same, a lever adapted to be adjusted to one position to rotate said wheel in one direction to open the gate and to another position to rotate the wheel in a reverse direction to close the gate, and a stationary support for said lever.

3. ln an apparatus of the character described, a rotary table, a. gate operably mounted on said table, a nut lixed to said gate, a screw threaded into said nut, a bearing lixed to the table and carrying said screw` a. wheel fixed to said screw to rotate the same, a lever having two prongs and adapted to be adjusted to bring one prong in the path of one side of the wheel to rotate the Same in a direction to open the gate and adjusted to bring the other prong in the path of the other side of the wheel to rotate the same in a direction to close the gate`r and a support for said lever.

'l. ln an apparatus ol' the charaett-r described, a rotary table enihmlving an upwardly extending wall having` an opening therein. a gate associated with the wall and arranged to slide up and down to. rcspectively, cover and uncover said opening` and mechanism for lowering said gate step hv step as the table rotates. i

1,416,92e Y t 5. In en apparatus of the character described, a. rotary table embodying an upwardly extending` Wall having an opening therein, a gate associated with the Wall and arranged to slide up and down to, respectively, eo'ver and uncover seid opening, screw niecllanisi'n for actuating said gate, and means independent of the table which seid screw mechanism contacts and is actuated thereby during each revolution of l0 the table.

In testimony whereof, I afiix my signature in the presence of two Witnesses:

MARY R. ARTHUR, Emecuzrim of James B. Arthur, deceased..

Witnesses FRANK EBERLE, VICTOR L. YOUNG. 

